/Engine/Source/Editor/UnrealEd/Public/CameraController.h
Updates the position and orientation of the camera as well as other state (like velocity.) Should be called every frame.
virtual void UpdateSimulation ( const [FCameraControllerUserImpulseData](API\Editor\UnrealEd\FCameraControllerUserImpulseData) & UserImpulseData, const float DeltaTime, const bool bAllowRecoilIfNoImpulse, const float MovementSpeedScale, FVector & InOutCameraPosition, FVector & InOutCameraEuler, float & InOutCameraFOV )